Ferrotyping fiber paper - problem

[Don_ih]

Yes. Water expands and turns into steam as it boils. Water trapped in small pockets dus to the slightly uneven surface texture of the paper results in localized pitting. Without heat, it doesn't happen as the water has time to diffuse away gradually.

But what does that have to do with "the degree of gloss" Vince mentioned? Vince asked what heat has to do with the degree of gloss (why drying with heat would make a print more glossy than not using heat, which had been said in a previous post), to which I said "Emulsion melting?"

 

[koraks]

Sorry, I was addressing the pitting issue. Pitting can look like a difference in gloss, but it's the opposite effect if what you addressed.

I'm skeptical about emulsion melting since hardened gelatin doesn't melt.

 

[Don_ih]

Sorry, I was addressing the pitting issue. Pitting can look like a difference in gloss, but it's the opposite effect if what you addressed.

I'm skeptical about emulsion melting since hardened gelatin doesn't melt.

Well, whatever "glossing" of the surface is occurring with the ferrotype process, I don't think it's unreasonable that it "glosses" even more if there's heat applied.

 

[koraks]

Evidently.